package cn.tedu.jdbc;

import java.sql.*;
import java.util.Scanner;

/**
 * 库名：tedu
 * 表名：student
 *
 */
public class JDBCDemo1 {
    public static void main(String[] args) throws ClassNotFoundException, SQLException {
        //1.加载数据库驱动
        Class.forName("com.mysql.cj.jdbc.Driver");
        //2.创建数据库连接对象:.var+回车
        Connection connection = DriverManager.getConnection(
                "jdbc:mysql://localhost:3308/tedu?characterEncoding=utf8&useSSL=false&serverTimezone=Asia/Shanghai&rewriteBatchedStatements=true",
                "root",
                "123456"
        );
        //3.创建SQL语句执行对象
        Statement statement = connection.createStatement();
        //4.执行SQL语句
        //接受用户名输入：用户名，密码，昵称，年龄
        Scanner scanner = new Scanner(System.in);
        System.out.println("用户名");
        String username =  scanner.nextLine();
        System.out.println("密码");
        String password =  scanner.nextLine();
        System.out.println("昵称");
        String nickname =  scanner.nextLine();
        System.out.println("年龄");
        Integer age = scanner.nextInt();
        //字符串拼接方式执行SQL,"+变量名+"，将变量的值嵌入到SQL语句中
        String sql = "INSERT INTO userinfo(username,password,nickname,age)VALUES('"+username+"','"+password+"','"+nickname+"',"+age+")" ;
        int i = statement.executeUpdate(sql);
        //5.断开数据库连接
        connection.close();
    }
}
